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The approach in this study involves assembling a sample set from six institutions via an interlaboratory round robin study. Slender beam samples were fabricated using fused deposition modeling and a standardized commercial filament and printed on whichever commercial printers were available at each institution. To quantify variability in fabrication of both bulk material and metamaterial-inspired features, two sample sets were requested and tested, a set of plain beams and a set of beams with embedded resonator. All samples were measured for dimensional accuracy and dynamic performance using a vibration shaker using a laser Doppler vibrometer. Measured resonance response of each set of samples revealed that the variability between printers was roughly 20% in bulk dynamic properties and as large as 280% in coupled resonator-beam dynamic performance. The study provides design bounds for metamaterial design across various printer hardware and highlights the importance of understanding repeatability using this fabrication approach.<\/jats:p>","DOI":"10.1121\/10.0046477","type":"journal-article","created":{"date-parts":[[2026,10,1]],"date-time":"2026-10-01T12:02:07Z","timestamp":1790856127000},"page":"2822-2832","update-policy":"https:\/\/doi.org\/10.1063\/aip-crossmark-policy-page","source":"Crossref","is-referenced-by-count":0,"title":["Variability in elastic vibration response of additively manufactured materials: A round robin study"],"prefix":"10.1121","volume":"160","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0252-7415","authenticated-orcid":false,"given":"Christina J.","family":"Naify","sequence":"first","affiliation":[{"name":"Applied Research Laboratories, The University of Texas at Austin 1 , Austin, Texas 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